实现两线程的同步一（wait/notify）

public class WaitAndNotifyDemo {public static void main(String[] args) throws InterruptedException {MThread mThread &＃61; new MThread(); synchronized (mThread) {try { mThread.start();// 主线程睡眠3sThread.sleep(3000);System.out.println("before wait");// 阻塞主线程
mThread.wait();System.out.println("after wait");} catch (InterruptedException e) {e.printStackTrace();} } }
}class MThread extends Thread {public void run() {synchronized (this) {System.out.println("before notify"); notify();System.out.println("after notify"); }}
}